US5699367A - Concatenated error detection coding and packet numbering for hierarchical ARQ schemes - Google Patents

Concatenated error detection coding and packet numbering for hierarchical ARQ schemes Download PDF

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US5699367A
US5699367A US08/581,111 US58111195A US5699367A US 5699367 A US5699367 A US 5699367A US 58111195 A US58111195 A US 58111195A US 5699367 A US5699367 A US 5699367A
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Prior art keywords
packet
error detection
packets
station
local
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Jacobus Haartsen
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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Assigned to TELEFONAKTIEBOLAGET LM ERICSSON reassignment TELEFONAKTIEBOLAGET LM ERICSSON ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAARTSEN, JACOBUS
Priority to EP96944720A priority patent/EP0870378B1/en
Priority to EE9800198A priority patent/EE03366B1/xx
Priority to CN96180072A priority patent/CN1212098A/zh
Priority to JP52426797A priority patent/JP3677297B2/ja
Priority to AU13236/97A priority patent/AU714480B2/en
Priority to BR9612365A priority patent/BR9612365A/pt
Priority to PCT/SE1996/001705 priority patent/WO1997024829A1/en
Priority to KR10-1998-0704951A priority patent/KR100431228B1/ko
Priority to DE69632147T priority patent/DE69632147T2/de
Priority to PL96327599A priority patent/PL182743B1/pl
Publication of US5699367A publication Critical patent/US5699367A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1809—Selective-repeat protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/188—Time-out mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link

Definitions

  • the present invention relates to packet data transmission over a chain of cascaded links that makes use of packet retransmission for error correction.
  • the present invention relates to packet data transmission over cascaded links that have different properties with respect to transmission costs per packet, transmission quality, transmission rate, and/or traffic density.
  • Examples of such cascaded transmission links are portable computing devices (laptop, organizer, PDA) that are wirelessly connected (e.g. via a radio connection) to a mobile or portable phone which is further connected via radio link to a cellular network.
  • portable computing devices laptop, organizer, PDA
  • PDA wirelessly connected
  • a mobile or portable phone which is further connected via radio link to a cellular network.
  • cordless or wireless local area networks LAN where a computing device is wirelessly connected to a fixed hub or satellite station that is connected to a wired LAN structure (Ethernet).
  • High capacity data transmission makes use of packet-switched networks in which data is conveyed in data packets which, in addition to the information, carry the addresses of the source and the destination.
  • data packets which, in addition to the information, carry the addresses of the source and the destination.
  • FEC forward-error-correction
  • CRC cyclic redundancy check
  • ARQ Automatic Repeat Query
  • More efficient methods continue to transmit packets even if their predecessors have not yet been acknowledged. Packets that have not been acknowledged are stored for retransmission, and are only then deleted from the storage when they have been acknowledged. In these methods, the packets are provided with a packet number so that the destination can acknowledge the correct packet numbers. Examples of ARQ methods that use packet numbering and do not wait for an acknowledgement before they transmit the next packet are selective ARQ and (cumulative) go-back-N ARQ. These methods provide higher throughputs especially on connections which contain a certain amount of delay.
  • Most data communication is not carried over a homogeneous connection but over a chain of cascaded links that are connected by relay stations. Very often, the individual links have different characteristics, and one link can be more sensitive than the others with respect to cost (public wired and cellular networks versus local, private networks), data rate, or transmission quality (which may be related to the traffic density).
  • a cascaded connection is the connection between a cellular base station and a portable computing device, that uses a short-range wireless connection to the cellular phone to access the cellular base station.
  • the cellular link is the most sensitive link.
  • Another example is a portable computing device that is wirelessly connected to a Local Area Network (LAN) that connects to a server.
  • LAN Local Area Network
  • the sensitive link is the wireless link between the computer and the wired LAN.
  • an end-to-end ARQ protocol ARQ between the source and destination only; the relay stations only relay the information without checking whether the information is correct
  • ARQ an end-to-end ARQ protocol
  • a method that minimizes retransmissions over the sensitive link, but at the same time combines a high throughput with low storage requirements in the relay stations. It is a combination of an end-to-end and a distributed ARQ protocol.
  • the present invention discloses a method in which retransmissions over the sensitive link of the connection only involves packets that were actually disturbed in this sensitive link. At the same time, required storage capacity in the relay stations connecting the sensitive link to the nonsensitive link is reduced. Errors occurring in the sensitive part of the connection will cause retransmission over nonsensitive links of the connection as well, but this is considered to be of less importance since the nonsensitive links have a high throughput and/or low costs.
  • concatenated error detection coding and packet numbering are used.
  • An end-to-end ARQ protocol is applied between two end stations that are connected via the sensitive link and at least one nonsensitive link.
  • the end stations have sufficient processing power and storage capability to do the end-to-end protocol.
  • Nonsensitive links in between the end stations apply their own "local" ARQs that regard the packet with end-to-end coding and number as a new information packet to which they add their own local error detection coding and number. Therefore, the local ARQ protocol encapsulates the end-to-end ARQ protocol, and a concatenation of error correction coding and numbering results.
  • a packet carried over the sensitive link only contains the end-to-end coding and numbering.
  • a packet carried over a nonsensitive link in addition contains the local coding and numbering.
  • a relay station between the nonsensitive and sensitive link that receives a packet from the nonsensitive link checks the correctness of the received packet using the local error detection coding. When the relay station determines that the packet has been correctly received, the relay station acknowledges the local number. The relay station then strips off the local coding and number and relays the packet to the sensitive link. If the packet has not been received correctly in the relay station, it is neither acknowledged nor is it relayed onto the sensitive link. When the relay station receives a packet from the sensitive link, the relay station does not check the correctness of the received packet, but directly adds the local coding and number, and then relays the packet to the nonsensitive link.
  • the end station which acts as the destination first the local error detection coding is checked. If OK, the local number is acknowledged to the relay station. Then the end-to-end protocol is carried out to see if the packet also passed the sensitive link error-free. If the packet has not been correctly received, reception of the packet is not acknowledged and the other end station which acts as the source retransmits the packet. Once the packet has been correctly received, the destination acknowledges receipt of the packet by acknowledging the end-to-end packet numbering to the source.
  • FIG. 1 illustrates packet transmission over cascaded connections in a local area network
  • FIG. 2 illustrates packet transmission over cascaded connections between a laptop and a cellular system through a short range RF connection to a cellular phone
  • FIG. 3 illustrates an end-to-end ARQ protocol
  • FIG. 4 illustrates a distributed ARQ protocol
  • FIG. 5 illustrates a concatenated ARQ protocol according to one embodiment of the present invention.
  • Transmission connections rarely consist of a homogeneous link.
  • transmission connections consist of a chain of cascaded links, where each individual link has its own characteristics with respect to throughput (data rate and link quality), and the costs of transmission.
  • Data communications usually applies packetizing techniques to convey the data.
  • the data is collected to form a packet which may have some overhead information like source and destination addresses, priority delivery, and an ordering number.
  • error detection coding e.g. cyclic-redundancy-check CRC or forward-error-correction FEC
  • CRC cyclic-redundancy-check
  • FEC forward-error-correction FEC
  • the packets can then be sent synchronously or asynchronously over the link.
  • the destination checks the correctness of the packet and either sends an acknowledgement signal (ACK) with the packet number or a non-acknowledgement signal (NAK) in case the packet has been correctly or incorrectly received, respectively.
  • ACK acknowledgement signal
  • NAK non-acknowledgement signal
  • the source can respond with a retransmission of the incorrect packet.
  • non-acknowledgement signals are not used. Instead, the source waits during a time-out period and if an acknowledgement signal is not received within the time-out period, the source automatically retransmits the packet.
  • ARQ Automatic Repeat Query
  • ARQ Automatic Repeat Query
  • Automatic Repeat Request is more secure than the use of non-acknowledgement signals, because if an acknowledgement signal gets disturbed, the source retransmits the packet, however, when a non-acknowledgement signal gets disturbed, some information may never correctly reach the destination.
  • acknowledgement messages do not have to be returned separately, but can be embedded in the return data flow, so-called piggy-back rides.
  • ARQ schemes There are several forms of ARQ schemes. In the most simple method, the source transmits only one packet and then waits for an acknowledgement for that packet. The same packet is retransmitted periodically until it is acknowledged. This STOP-AND-WAIT ARQ method is not very efficient, especially when there is a considerable delay in the connection or in the destination's processing.
  • An ARQ method with a higher throughput rate transmits packets continuously, but stores the transmitted packets until they are acknowledged. After a packet has been acknowledged, the packet is deleted from the stored list of packets. If the packets are not acknowledged within a time-out period, they are retransmitted.
  • FIGS. 1 and 2 Two examples of these kinds of connections are illustrated in FIGS. 1 and 2.
  • a wireless local area network LAN is shown.
  • a server is connected to a wired LAN, whereas a portable computer is connected to the same wired LAN via a radio link.
  • the radio link is the sensitive link in this example, since it has a lower throughput (lower data rate, lower quality thus more retransmissions).
  • the server and the portable computer are the end stations in this example.
  • the hub acts as a relay station between the radio link and the wired LAN and can serve several portable computers.
  • FIG. 1 a wireless local area network LAN is shown.
  • a server is connected to a wired LAN
  • a portable computer is connected to the same wired LAN via a radio link.
  • the radio link is the sensitive link in this example, since it has a lower throughput (lower data rate, lower quality thus more retransmissions).
  • the server and the portable computer are the end stations in this example.
  • a portable data device such as a laptop, PDA, organizer, etc.
  • a cellular phone which is connected to the cellular network via a radio link.
  • the cellular link is the sensitive link with respect to throughput (data rate and signal quality) and air-time costs.
  • the cellular base station (or the interworking unit connected to the base station) and the data device act as end stations, whereas the cellular phone acts as a relay station. Because of the reduced throughput and/or costs, errors occurring in either the wired LAN (a) or the short-range RF link (b) should not induce retransmissions over the sensitive links.
  • ARQ protocols provides error correction by retransmission in the above-described communications systems.
  • a straight-forward ARQ method uses an end-to-end protocol that checks the packets at the end stations only, as illustrated in FIG. 3.
  • the dashed-line represents the sensitive link.
  • the storage capacity required for the end-to-end ARQ protocol is only encountered in the end stations.
  • the relay station merely has to relay the information from one link to the other without doing anything with the packets.
  • This ARQ protocol is not attractive in the above-mentioned applications, because errors in the nonsensitive link will induce end-to-end retransmissions, involving the sensitive links as well. This disadvantage can be avoided by applying a distributed ARQ protocol as shown in FIG. 4.
  • the sensitive and nonsensitive links each have their own ARQ protocol. Retransmissions only take place in the link on which the errors have actually occurred.
  • the relay station now has to be able to carry out two local ARQ protocols, including the storage of the frames for retransmissions.
  • the nonsensitive link this is not such a problem. Since its throughput is high and the round-trip delay is small, the buffer requirements are limited since the higher throughput and the shorter delay before acknowledgment requires less buffering.
  • the sensitive link however, more elaborate storage capabilities are required.
  • the extra storage requirements and end-protocol processing are not attractive. In FIG.
  • this difference in storage capacity for the two ARQ methods is indicated by the difference in size of the memories.
  • the packet characteristics are specified with the capital letters I, D and N, where I is the information packet, D is the added data for error detection, and N is the packet number.
  • I is the information packet
  • D is the added data for error detection
  • N is the packet number.
  • I is the information packet
  • D is the added data for error detection
  • N is the packet number.
  • FIG. 3 only one packet type existed which included the end-to-end error coding D -- E and number N -- E, wherein -- E denotes that the error detection coding D and the number N are part of the end-to-end protocol.
  • there are two local protocols producing a D -- L1, N -- L1, and a D -- L2, N -- L2 for two local ARQs, wherein -- L denotes that the error detection coding D and the number N are part of the local protocol.
  • the relay station complexity can be reduced by only applying a local ARQ method for the nonsensitive link. In such a method, only a small amount of storage is required. This can be achieved by encapsulating the end-to-end ARQ protocol by the local ARQ protocol, as illustrated in FIG. 5. In addition to an end-to-end protocol between the two end stations, a local ARQ protocol is used over the nonsensitive link. Packets of the end-to-end protocol are regarded as normal data for the local ARQ protocol and given additional error detection coding and numbering.
  • the end station A wants to transmit an information packet I, it adds the error detection coding D -- E and the number N -- E of the end-to-end protocol, resulting in a packet D -- E (I) N -- E.
  • the local ARQ protocol adds a second layer with error detection coding D -- L and the number N -- L to produce a packet D -- L (D -- E (I) N -- E) N -- L.
  • the relay station receives this packet, first the error detection coding D -- L is checked to see whether the local link produced any errors. If the packet has been correctly received, the local number N -- L is acknowledged to station A.
  • the relay station then strips off the local ARQ overhead (i.e., D -- L and N -- L) from the packet, and the packet is relayed to the sensitive link. If the packet is not correctly received, the local number N -- L is not acknowledged, nor is the packet relayed to the sensitive link. The packet is then retransmitted by station A locally over the nonsensitive link until the packet is correctly received and acknowledged by the relay station.
  • D -- L and N -- L local ARQ overhead
  • the packet's correctness is checked using the error detection coding D -- E. Only errors on the sensitive link could have affected this packet, otherwise the packet would not have been relayed.
  • the end-to-end protocol packet number N -- E is then acknowledged to station A if the packet has been received correctly. If the packet has not been received correctly, it must be retransmitted over the entire connection. However, because the local link is a nonsensitive link with a high throughput, this extra traffic is not a problem for the non-sensitive link.
  • the end station B takes an information packet I and adds the end-to-end protocol error detection coding D -- E and numbering N -- E to produce D -- E (I) N -- E. Then the coded packet is sent through the sensitive link to the relay station. The relay station does not check if the packet has been received correctly. The packet is taken as it is and a second layer of error detection coding D -- L and numbering N -- L is laid around the packet to produce D -- L (D -- E (I) N -- E) N -- L. On receipt of the packet, the end station A first checks whether the packet passed the last, local link correctly by checking the error detection coding D -- L. If the error detection coding is correct, the end station A acknowledges the (local) packet reception to the relay station by acknowledging N -- L.
  • packet number N -- L is not acknowledged, the packet is retransmitted, but only by the relay station. If the error detection coding D -- L is correct, the end station A takes the next ARQ layer and checks the end-to-end protocol error detection coding D -- E. If the error detection coding D -- E is correct, it is clear that the packet passed the entire connection correctly, and its reception can be acknowledged by acknowledging the number N -- E to the end station B. If the error detection coding D -- E is not correct, apparently an error occurred in the sensitive link, and the end packet number N -- E is not acknowledged. As a result, the end station B retransmits the packet until the packet is acknowledged by the end station A.
  • the relay station checks the error detection coding D -- E in the packet it receives from the end station B. It discards the packet when an error is detected, thus reducing the traffic on the nonsensitive link.
  • the extra overhead in sending incorrect packets over the high-throughput link is not such a problem, whereas an end-protocol error check in the relay station might unnecessarily burden the relay station.
  • the relay station still has to have storage and processing power to do the local ARQ scheme.
  • the buffer and processing requirements are much smaller for the local ARQ than for the end-to-end ARQ.
  • the local ARQ is embedded in the end-to-end ARQ, any errors undetected in the local procedure will be caught by the end-to-end procedure. It will be understood that this extra security should be used as little as possible in order to minimize the extra retransmissions over the sensitive link.
  • the nonsensitive link does not have to be completely error-free, which simplifies the local ARQ implementation even more.
  • One possible expansion on this basic method is a system in which the end-to-end packet is divided into smaller subpackets which are each locally coded and numbered and then transmitted at a high rate through the local link.
  • the subpackets are collected and assembled into a single packet that is then transmitted over the sensitive link.
  • Still another expansion on the basic method is a system where several end-to-end packets are collected and assembled into a large packet, which is then locally coded and numbered. This large packet is then transmitted through the local (non-sensitive) link.
  • the correctly received assembled packet is disassembled into the original end-to-end packets, which are then individually relayed to and transmitted over the sensitive link.
  • the encapsulation procedure can be continued if there are more cascaded and sensitive links.
  • a new shell of ARQ information is built around the former packet.
  • the entire packet (information+coding+number) is considered as a new information packet.
  • a hierarchy of ARQ schemes is created, and the overhead for the individual ARQ schemes lie as layers or shells around the packet.
US08/581,111 1995-12-29 1995-12-29 Concatenated error detection coding and packet numbering for hierarchical ARQ schemes Expired - Lifetime US5699367A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US08/581,111 US5699367A (en) 1995-12-29 1995-12-29 Concatenated error detection coding and packet numbering for hierarchical ARQ schemes
BR9612365A BR9612365A (pt) 1995-12-29 1996-12-19 Processo para minimizar retransmissões de pacotes entre duas estações terminais
KR10-1998-0704951A KR100431228B1 (ko) 1995-12-29 1996-12-19 계층형arq구조의연결된에러검출코딩및패킷넘버링
CN96180072A CN1212098A (zh) 1995-12-29 1996-12-19 等级式arq方案的关联式检错编码与包的编号
JP52426797A JP3677297B2 (ja) 1995-12-29 1996-12-19 階層ａｒｑ方式のための連結された誤り検出コード化及びパケット番号付け
AU13236/97A AU714480B2 (en) 1995-12-29 1996-12-19 Concatenated error detection coding and packet numbering for hierarchical arq schemes
EP96944720A EP0870378B1 (en) 1995-12-29 1996-12-19 Concatenated error detection coding and packet numbering for hierarchical arq schemes
PCT/SE1996/001705 WO1997024829A1 (en) 1995-12-29 1996-12-19 Concatenated error detection coding and packet numbering for hierarchical arq schemes
EE9800198A EE03366B1 (et) 1995-12-29 1996-12-19 Konkateneeritud veadetekteerimise kodeerimine ja paketi nummerdamine hierarhiliste ARQ skeemide jaoks
DE69632147T DE69632147T2 (de) 1995-12-29 1996-12-19 Verbund-fehlererkennung und datenpaketnumerierung in einem hierarchischen arq-übertragungssystem
PL96327599A PL182743B1 (pl) 1995-12-29 1996-12-19 Sposób minimalizowania retransmisji pakietów informacji między dwiema stacjami końcowymi

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US08/581,111 US5699367A (en) 1995-12-29 1995-12-29 Concatenated error detection coding and packet numbering for hierarchical ARQ schemes

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US (1) US5699367A (ja)
EP (1) EP0870378B1 (ja)
JP (1) JP3677297B2 (ja)
KR (1) KR100431228B1 (ja)
CN (1) CN1212098A (ja)
AU (1) AU714480B2 (ja)
BR (1) BR9612365A (ja)
DE (1) DE69632147T2 (ja)
EE (1) EE03366B1 (ja)
PL (1) PL182743B1 (ja)
WO (1) WO1997024829A1 (ja)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5920550A (en) * 1996-10-11 1999-07-06 Motorola, Inc. System, method, and apparatus for soft handoff
WO2000022768A2 (en) * 1998-10-15 2000-04-20 Sun Microsystems, Inc. Adaptive retransmission for error control in computer networks
WO2000038368A1 (en) 1998-12-18 2000-06-29 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for transferring messages in a radio communication system
EP1058922A1 (en) * 1998-02-27 2000-12-13 Motorola, Inc. Method for determining a need to retransmit a message in a communication system
WO2001084342A1 (en) * 2000-05-04 2001-11-08 Mci Worldcom, Inc. Method and apparatus for providing automatic notification
EP1179909A2 (en) 2000-08-11 2002-02-13 Echelon Corporation A system and method for providing transaction control on a data network
US6373842B1 (en) * 1998-11-19 2002-04-16 Nortel Networks Limited Unidirectional streaming services in wireless systems
US20020157054A1 (en) * 2000-11-22 2002-10-24 Yeshik Shin Method and system for host handling of communications errors
WO2003001724A2 (en) * 2001-06-22 2003-01-03 Motorola Inc Proxy server and method for delivering information in a multimedia communication system
WO2003028279A2 (de) * 2001-09-26 2003-04-03 Siemens Aktiengesellschaft Weiterleitung von datentelegrammen mit koppelknot datenersatz
US20030226094A1 (en) * 1998-11-30 2003-12-04 Hideaki Fukushima Data transmission method
US20040005882A1 (en) * 2001-07-03 2004-01-08 Isamu Yoshii Radio communication system and radio communication method
US6724731B1 (en) * 1997-11-04 2004-04-20 Fujitsu Limited Radio communication system and control method, and information processing apparatus used therein
WO2005008947A1 (en) * 2003-07-17 2005-01-27 Koninklijke Philips Electronics N.V. Packet retransmission for mimo systems using multipath transmission
US6898417B1 (en) 1998-09-30 2005-05-24 Koninklijke Philips Electronics N.V. Method for the communication of information and apparatus employing the method
US20050119535A1 (en) * 2003-11-27 2005-06-02 Nihon Kohden Corporation System and method for communicating biological signal data
US6970678B1 (en) * 1997-04-04 2005-11-29 Ditzik Richard J Wireless local area communication and networking system
US20050273537A1 (en) * 2004-06-08 2005-12-08 Arm Limited Write response signalling within a communication bus
US6983409B1 (en) * 1999-06-17 2006-01-03 Robert Bosch Gmbh Method of repeat transmission of messages in a centrally controlled communication network
WO2006024321A1 (en) * 2004-08-31 2006-03-09 Telefonaktiebolaget Lm Ericsson (Publ) Communication device
US7020822B2 (en) * 2001-08-02 2006-03-28 Texas Instruments Incorporated Automatic repeat request for centralized channel access
US7103380B1 (en) * 1997-04-04 2006-09-05 Ditzik Richard J Wireless handset communication system
US20070124642A1 (en) * 2005-11-04 2007-05-31 Samsung Electronics Co., Ltd. Automatic request apparatus and method for multihop system in broadband wireless access communication network
US20070263631A1 (en) * 1999-05-21 2007-11-15 Mallory Tracy D Limited automatic repeat request protocol for frame-based communication channels
US20070275657A1 (en) * 2006-05-29 2007-11-29 Samsung Electronics Co., Ltd. Retransmission apparatus and method in wireless relay communication system
WO2007139338A1 (en) * 2006-05-29 2007-12-06 Samsung Electronics Co., Ltd. Retransmission apparatus and method in wireless relay communication system
WO2008030050A1 (en) * 2006-09-06 2008-03-13 Samsung Electronics Co., Ltd. Method and apparatus for automatic repeat request in a multi-hop broadband wireless communication system
US20080084846A1 (en) * 2006-10-06 2008-04-10 Fujitsu Limited Wireless communication system, wireless base station, and wireless communication control method
US20080123560A1 (en) * 2006-11-27 2008-05-29 Canon Kabushiki Kaisha Methods and devices for the dynamic management of transmission errors by network points of interconnections
US20080225873A1 (en) * 2007-03-15 2008-09-18 International Business Machines Corporation Reliable network packet dispatcher with interleaving multi-port circular retry queue
US20080225703A1 (en) * 2007-03-15 2008-09-18 International Business Machines Corporation Congestion reducing reliable transport packet retry engine
US20080317017A1 (en) * 2004-08-31 2008-12-25 Henning Wiemann Data Unit Sender and Data Unit Relay Device
US20090217119A1 (en) * 2006-06-22 2009-08-27 Huawei Technologies Co., Ltd. Method, system and relay station for realizing hybrid automatic retransmission
US20100115363A1 (en) * 2007-03-06 2010-05-06 Electronics And Telecommunications Research Institute Cooperative h-arq supporting method
WO2010064805A2 (en) * 2008-12-03 2010-06-10 Lg Electronics Inc. Method for performing harq for relay station
US20100180172A1 (en) * 2006-03-21 2010-07-15 Henning Weimann Communication control method
US20100195665A1 (en) * 2007-09-24 2010-08-05 Plextek Limited Data acknowledgement apparatus and method
US20100302997A1 (en) * 2007-11-30 2010-12-02 Electronics and Telecommunications Research Insti tute System and method for reassembling packets in relay node
KR101318997B1 (ko) 2006-08-03 2013-10-17 한국과학기술원 다중 홉 중계 방식의 무선 통신시스템에서 재전송 장치 및방법
US20140280712A1 (en) * 2013-03-15 2014-09-18 Schweitzer Engineering Laboratories, Inc. Exchange of Messages Between Devices in an Electrical Power System
US9065763B2 (en) 2013-03-15 2015-06-23 Schweitzer Engineering Laboratories, Inc. Transmission of data over a low-bandwidth communication channel
US9160494B2 (en) 2008-03-14 2015-10-13 Apple Inc. Distributed ARQ for wireless communication system
US9620955B2 (en) 2013-03-15 2017-04-11 Schweitzer Engineering Laboratories, Inc. Systems and methods for communicating data state change information between devices in an electrical power system
WO2017161271A1 (en) * 2016-03-18 2017-09-21 Kyocera Corporation System and method for dual-coding transmissions for relays
US10819727B2 (en) 2018-10-15 2020-10-27 Schweitzer Engineering Laboratories, Inc. Detecting and deterring network attacks
US20220077958A1 (en) * 2019-05-15 2022-03-10 Huawei Technologies Co., Ltd. Data Transmission Method and Apparatus

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6195564B1 (en) 1997-09-19 2001-02-27 Ericsson Inc. Method for automatically establishing a wireless link between a wireless modem and a communication device
ES2301110T3 (es) * 2000-05-17 2008-06-16 Matsushita Electric Industrial Co., Ltd Sistema arq hibrido para transmision de datos en paquetes con un canal de control y un canal de datos.
EP1246385B1 (en) 2001-03-26 2014-04-30 LG Electronics Inc. Method of transmitting or receiving data packet in packet data communication system using hybrid automatic repeat request
US7889742B2 (en) * 2001-09-29 2011-02-15 Qualcomm, Incorporated Method and system for improving data throughput
US20030135797A1 (en) * 2002-01-15 2003-07-17 Sunghyun Choi Method and apparatus for enhancing the transmission of error in the IEEE 802.11e systems
EP1337065A1 (en) * 2002-02-13 2003-08-20 Telefonaktiebolaget L M Ericsson (Publ) Semi-reliable ARQ method and device thereof
JP4116470B2 (ja) * 2002-03-06 2008-07-09 ヒューレット・パッカード・カンパニー メディア・ストリーミング配信システム
DE102004009266B4 (de) * 2004-02-26 2005-12-29 Siemens Ag Verfahren zur Übertragung von Nutzdaten in einem Multihop-System und Netzwerkknoten-Einrichtung dafür
US8149757B2 (en) * 2006-01-17 2012-04-03 Nokia Corporation Bandwidth efficient HARQ scheme in relay network
US7613256B2 (en) 2006-04-04 2009-11-03 Qualcomm Incorporated Forward error correction in a distribution system
JP4952138B2 (ja) 2006-08-17 2012-06-13 富士通株式会社 中継局、無線基地局及び通信方法
US8014336B2 (en) 2006-12-18 2011-09-06 Nokia Corporation Delay constrained use of automatic repeat request for multi-hop communication systems
KR101292597B1 (ko) * 2007-02-27 2013-08-05 삼성전자주식회사 중계방식을 사용하는 무선통신시스템에서 제어메시지 전송장치 및 방법
CN103220095B (zh) * 2007-05-04 2016-04-20 诺基亚通信公司 聚合harq报告
CN101765993B (zh) * 2007-06-22 2014-06-25 诺基亚公司 用于多层arq协议的状态报告消息
KR101507613B1 (ko) * 2008-08-11 2015-04-08 엘지전자 주식회사 무선통신 시스템에서 중계기의 동작 방법

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193091A2 (en) * 1985-02-23 1986-09-03 Hitachi, Ltd. Data retransmitting method in communication network
EP0695053A2 (en) * 1994-07-29 1996-01-31 AT&T Corp. Asymmetric protocol for wireless communications

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193091A2 (en) * 1985-02-23 1986-09-03 Hitachi, Ltd. Data retransmitting method in communication network
EP0695053A2 (en) * 1994-07-29 1996-01-31 AT&T Corp. Asymmetric protocol for wireless communications
US5570367A (en) * 1994-07-29 1996-10-29 Lucent Technologies Inc. Asymmetric protocol for wireless communications

Non-Patent Citations (12)

* Cited by examiner, † Cited by third party
Title
"Data Overlap Architecture," IBM Technical Disclosure Bulletin, vol. 34, No. 2, pp. 195-197, Jul. 1991.
A. Bhargava et al., "Performance Comparison of Error Control Schemes in High Speed Computer Communication Networks," IEEE INFOCOM '88--The Conference on Computer Communications Proceedings, Seventh Annual Joint Conference of the IEEE Computer and Communications Societies-Networks: Evolution or Revolution?, pp. 694-703, Mar., 1988.
A. Bhargava et al., Performance Comparison of Error Control Schemes in High Speed Computer Communication Networks, IEEE INFOCOM 88 The Conference on Computer Communications Proceedings, Seventh Annual Joint Conference of the IEEE Computer and Communications Societies Networks: Evolution or Revolution , pp. 694 703, Mar., 1988. *
Data Overlap Architecture, IBM Technical Disclosure Bulletin , vol. 34, No. 2, pp. 195 197, Jul. 1991. *
DeSimone et al., "Throughput Performance of Transport \-Layer Protocols over Wireless LANs", GLOBECOM '93, Dec. 1993, pp. 542-549, Dec. 1993.
DeSimone et al., Throughput Performance of Transport Layer Protocols over Wireless LANs , GLOBECOM 93, Dec. 1993, pp. 542 549, Dec. 1993. *
K. Mase et al., "Go-Back-N ARQ Schemes for Point-to-Multipoint Satellite Communications," IEEE Transactions on Communications, vol. COM-31, No. 4, pp. 583-589, Apr., 1983.
K. Mase et al., Go Back N ARQ Schemes for Point to Multipoint Satellite Communications, IEEE Transactions on Communications , vol. COM 31, No. 4, pp. 583 589, Apr., 1983. *
M.J. Miller, "Error Control Techniques for Integrated Services Packet Networks," IEEE Journal on Selected Areas in Communications, vol. 7, No. 5, 690-697, Jun., 1989.
M.J. Miller, Error Control Techniques for Integrated Services Packet Networks, IEEE Journal on Selected Areas in Communications , vol. 7, No. 5, 690 697, Jun., 1989. *
Paul et al., "An Asymmetric Protocol for Digital Cellular Communications", INFOCOM '95, Apr. 1995, pp. 1053-1062.
Paul et al., An Asymmetric Protocol for Digital Cellular Communications , INFOCOM 95, Apr. 1995, pp. 1053 1062. *

Cited By (98)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5920550A (en) * 1996-10-11 1999-07-06 Motorola, Inc. System, method, and apparatus for soft handoff
US7103380B1 (en) * 1997-04-04 2006-09-05 Ditzik Richard J Wireless handset communication system
US6970678B1 (en) * 1997-04-04 2005-11-29 Ditzik Richard J Wireless local area communication and networking system
US6724731B1 (en) * 1997-11-04 2004-04-20 Fujitsu Limited Radio communication system and control method, and information processing apparatus used therein
EP1058922A1 (en) * 1998-02-27 2000-12-13 Motorola, Inc. Method for determining a need to retransmit a message in a communication system
EP1058922A4 (en) * 1998-02-27 2001-09-12 Motorola Inc METHOD FOR DETERMINING THE NEED TO RETRANSMIT A MESSAGE IN A COMMUNICATION SYSTEM
US6898417B1 (en) 1998-09-30 2005-05-24 Koninklijke Philips Electronics N.V. Method for the communication of information and apparatus employing the method
US6590895B1 (en) 1998-10-15 2003-07-08 Sun Microsystems, Inc. Adaptive retransmission for error control in computer networks
WO2000022768A2 (en) * 1998-10-15 2000-04-20 Sun Microsystems, Inc. Adaptive retransmission for error control in computer networks
WO2000022768A3 (en) * 1998-10-15 2000-11-23 Sun Microsystems Inc Adaptive retransmission for error control in computer networks
US6373842B1 (en) * 1998-11-19 2002-04-16 Nortel Networks Limited Unidirectional streaming services in wireless systems
US20030226094A1 (en) * 1998-11-30 2003-12-04 Hideaki Fukushima Data transmission method
US6732313B2 (en) * 1998-11-30 2004-05-04 Matsushita Electric Industrial Co., Ltd. Data transmission method
WO2000038368A1 (en) 1998-12-18 2000-06-29 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for transferring messages in a radio communication system
US6665522B1 (en) 1998-12-18 2003-12-16 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement in a radio communication system
US20070263631A1 (en) * 1999-05-21 2007-11-15 Mallory Tracy D Limited automatic repeat request protocol for frame-based communication channels
US8503451B2 (en) * 1999-05-21 2013-08-06 Broadcom Corporation Limited automatic repeat request protocol for frame-based communication channels
US6983409B1 (en) * 1999-06-17 2006-01-03 Robert Bosch Gmbh Method of repeat transmission of messages in a centrally controlled communication network
WO2001084342A1 (en) * 2000-05-04 2001-11-08 Mci Worldcom, Inc. Method and apparatus for providing automatic notification
US6421725B1 (en) * 2000-05-04 2002-07-16 Worldcom, Inc. Method and apparatus for providing automatic notification
EP1179909A3 (en) * 2000-08-11 2004-01-28 Echelon Corporation A system and method for providing transaction control on a data network
EP1179909A2 (en) 2000-08-11 2002-02-13 Echelon Corporation A system and method for providing transaction control on a data network
US20020157054A1 (en) * 2000-11-22 2002-10-24 Yeshik Shin Method and system for host handling of communications errors
US7903684B2 (en) 2000-11-22 2011-03-08 Silicon Image, Inc. Communications architecture for transmission of data between memory bank caches and ports
US20040004975A1 (en) * 2000-11-22 2004-01-08 Yeshik Shin Method and system for nesting of communications packets
US6976201B2 (en) * 2000-11-22 2005-12-13 Silicon Image Method and system for host handling of communications errors
US7154905B2 (en) 2000-11-22 2006-12-26 Silicon Image Method and system for nesting of communications packets
WO2003001724A2 (en) * 2001-06-22 2003-01-03 Motorola Inc Proxy server and method for delivering information in a multimedia communication system
WO2003001724A3 (en) * 2001-06-22 2003-08-28 Motorola Inc Proxy server and method for delivering information in a multimedia communication system
US7174128B2 (en) * 2001-07-03 2007-02-06 Matsushita Electric Industrial Co., Ltd. Radio communication system and radio communication method
US20040005882A1 (en) * 2001-07-03 2004-01-08 Isamu Yoshii Radio communication system and radio communication method
US7020822B2 (en) * 2001-08-02 2006-03-28 Texas Instruments Incorporated Automatic repeat request for centralized channel access
WO2003028279A3 (de) * 2001-09-26 2003-05-30 Siemens Ag Weiterleitung von datentelegrammen mit koppelknot datenersatz
CN1317841C (zh) * 2001-09-26 2007-05-23 西门子公司 利用置换电报识别错误和避免错误的方法和节点
WO2003028279A2 (de) * 2001-09-26 2003-04-03 Siemens Aktiengesellschaft Weiterleitung von datentelegrammen mit koppelknot datenersatz
US20040243902A1 (en) * 2001-09-26 2004-12-02 Dieter Bruckner Replacement messages for identifying and preventing errors during the transmission of real time-critical data
US7770085B2 (en) 2001-09-26 2010-08-03 Siemens Aktiengesellschaft Replacement messages for identifying and preventing errors during the transmission of real time-critical data
US20060233200A1 (en) * 2003-07-17 2006-10-19 Koninklijke Philips Electronics N.V. Packet retransmission for mimo systems using multipath transmission
WO2005008947A1 (en) * 2003-07-17 2005-01-27 Koninklijke Philips Electronics N.V. Packet retransmission for mimo systems using multipath transmission
US20050119535A1 (en) * 2003-11-27 2005-06-02 Nihon Kohden Corporation System and method for communicating biological signal data
US7547280B2 (en) * 2003-11-27 2009-06-16 Nihon Kohden Corporation System and method for communicating biological signal data
US20050273537A1 (en) * 2004-06-08 2005-12-08 Arm Limited Write response signalling within a communication bus
US7213092B2 (en) * 2004-06-08 2007-05-01 Arm Limited Write response signalling within a communication bus
US8553698B2 (en) 2004-08-31 2013-10-08 Telefonaktiebolaget Lm Ericsson (Publ) Data unit sender and data unit relay device
US20110038376A1 (en) * 2004-08-31 2011-02-17 Henning Wiemann Data Unit Sender and Data Unit Relay Device
US7864799B2 (en) 2004-08-31 2011-01-04 Telefonaktiebolaget Lm Ericsson (Pub) Communication device
WO2006024321A1 (en) * 2004-08-31 2006-03-09 Telefonaktiebolaget Lm Ericsson (Publ) Communication device
US7839858B2 (en) 2004-08-31 2010-11-23 Telefonaktiebolaget Lm Ericsson Data unit sender and data unit relay device
US20080317017A1 (en) * 2004-08-31 2008-12-25 Henning Wiemann Data Unit Sender and Data Unit Relay Device
US20090003378A1 (en) * 2004-08-31 2009-01-01 Joachim Sachs Communication Device
US7987409B2 (en) * 2005-11-04 2011-07-26 Samsung Electronics Co., Ltd. Automatic request apparatus and method for multihop system in broadband wireless access communication network
US20070124642A1 (en) * 2005-11-04 2007-05-31 Samsung Electronics Co., Ltd. Automatic request apparatus and method for multihop system in broadband wireless access communication network
US8392780B2 (en) * 2006-03-21 2013-03-05 Telefonaktiebolaget L M Ericsson (Publ) Communication control method
US20100180172A1 (en) * 2006-03-21 2010-07-15 Henning Weimann Communication control method
WO2007139338A1 (en) * 2006-05-29 2007-12-06 Samsung Electronics Co., Ltd. Retransmission apparatus and method in wireless relay communication system
US20070275657A1 (en) * 2006-05-29 2007-11-29 Samsung Electronics Co., Ltd. Retransmission apparatus and method in wireless relay communication system
WO2007139341A1 (en) * 2006-05-29 2007-12-06 Samsung Electronics Co., Ltd. Retransmission apparatus and method in wireless communication system
US8000650B2 (en) * 2006-05-29 2011-08-16 Samsung Electronics Co., Ltd Retransmission apparatus and method in wireless relay communication system
US7890049B2 (en) 2006-05-29 2011-02-15 Samsung Electronics Co., Ltd. Retransmission apparatus and method in wireless relay communication system
US20090217119A1 (en) * 2006-06-22 2009-08-27 Huawei Technologies Co., Ltd. Method, system and relay station for realizing hybrid automatic retransmission
KR101318997B1 (ko) 2006-08-03 2013-10-17 한국과학기술원 다중 홉 중계 방식의 무선 통신시스템에서 재전송 장치 및방법
KR101248071B1 (ko) 2006-09-06 2013-03-27 삼성전자주식회사 멀티 홉 기술을 지원하는 광대역 무선 통신 시스템에서재전송 방법 및 장치
US7991352B2 (en) * 2006-09-06 2011-08-02 Samsung Electronics Co., Ltd Method and apparatus for automatic repeat request in a multi-hop broadband wireless communication system
WO2008030050A1 (en) * 2006-09-06 2008-03-13 Samsung Electronics Co., Ltd. Method and apparatus for automatic repeat request in a multi-hop broadband wireless communication system
US20080081554A1 (en) * 2006-09-06 2008-04-03 Samsung Electronics Co., Ltd. Method and apparatus for automatic repeat request in a multi-hop broadband wireless communication system
US8189531B2 (en) * 2006-10-06 2012-05-29 Fujitsu Limited Wireless communication system, wireless base station, and wireless communication control method
US20080084846A1 (en) * 2006-10-06 2008-04-10 Fujitsu Limited Wireless communication system, wireless base station, and wireless communication control method
US8181077B2 (en) * 2006-11-27 2012-05-15 Canon Kabushiki Kaisha Methods and devices for the dynamic management of transmission errors by network points of interconnections
US20080123560A1 (en) * 2006-11-27 2008-05-29 Canon Kabushiki Kaisha Methods and devices for the dynamic management of transmission errors by network points of interconnections
US20100115363A1 (en) * 2007-03-06 2010-05-06 Electronics And Telecommunications Research Institute Cooperative h-arq supporting method
US7830901B2 (en) 2007-03-15 2010-11-09 International Business Machines Corporation Reliable network packet dispatcher with interleaving multi-port circular retry queue
US7693070B2 (en) * 2007-03-15 2010-04-06 International Business Machines Corporation Congestion reducing reliable transport packet retry engine
US20080225703A1 (en) * 2007-03-15 2008-09-18 International Business Machines Corporation Congestion reducing reliable transport packet retry engine
US20080225873A1 (en) * 2007-03-15 2008-09-18 International Business Machines Corporation Reliable network packet dispatcher with interleaving multi-port circular retry queue
US20100195665A1 (en) * 2007-09-24 2010-08-05 Plextek Limited Data acknowledgement apparatus and method
US8284669B2 (en) * 2007-09-24 2012-10-09 Plextek Limited Data acknowledgement apparatus and method
US8462692B2 (en) * 2007-11-30 2013-06-11 Samsung Electronics Co., Ltd. System and method for reassembling packets in relay node
US20100302997A1 (en) * 2007-11-30 2010-12-02 Electronics and Telecommunications Research Insti tute System and method for reassembling packets in relay node
US9344225B2 (en) 2008-03-14 2016-05-17 Apple Inc. Distributed ARQ for wireless communication system
US9160494B2 (en) 2008-03-14 2015-10-13 Apple Inc. Distributed ARQ for wireless communication system
US8982771B2 (en) 2008-12-03 2015-03-17 Lg Electronics Inc. Method for performing HARQ for relay station
WO2010064805A3 (en) * 2008-12-03 2010-08-12 Lg Electronics Inc. Method for performing harq for relay station
US8514766B2 (en) 2008-12-03 2013-08-20 Lg Electronics Inc. Method for performing HARQ for relay station
US9813142B2 (en) 2008-12-03 2017-11-07 Lg Electronics Inc. Method for performing HARQ for relay station
WO2010064805A2 (en) * 2008-12-03 2010-06-10 Lg Electronics Inc. Method for performing harq for relay station
US9191099B2 (en) 2008-12-03 2015-11-17 Lg Electronics Inc. Method for performing HARQ for relay station
US9620955B2 (en) 2013-03-15 2017-04-11 Schweitzer Engineering Laboratories, Inc. Systems and methods for communicating data state change information between devices in an electrical power system
US9270109B2 (en) * 2013-03-15 2016-02-23 Schweitzer Engineering Laboratories, Inc. Exchange of messages between devices in an electrical power system
US9363200B2 (en) 2013-03-15 2016-06-07 Schweitzer Engineering Laboratories, Inc. Transmission of data over a low-bandwidth communication channel
US20140280712A1 (en) * 2013-03-15 2014-09-18 Schweitzer Engineering Laboratories, Inc. Exchange of Messages Between Devices in an Electrical Power System
US9065763B2 (en) 2013-03-15 2015-06-23 Schweitzer Engineering Laboratories, Inc. Transmission of data over a low-bandwidth communication channel
WO2017161271A1 (en) * 2016-03-18 2017-09-21 Kyocera Corporation System and method for dual-coding transmissions for relays
WO2017161280A1 (en) * 2016-03-18 2017-09-21 Kyocera Corporation System and method for dual-coding for dual-hops channels
US20190028232A1 (en) * 2016-03-18 2019-01-24 Kyocera Corporation System and method for dual-coding for dual-hops channels
US10630430B2 (en) * 2016-03-18 2020-04-21 Kyocera Corporation System and method for dual-coding for dual-hops channels
US11153040B2 (en) 2016-03-18 2021-10-19 Kyocera Corporation System and method for dual-coding transmissions for relays
US10819727B2 (en) 2018-10-15 2020-10-27 Schweitzer Engineering Laboratories, Inc. Detecting and deterring network attacks
US20220077958A1 (en) * 2019-05-15 2022-03-10 Huawei Technologies Co., Ltd. Data Transmission Method and Apparatus

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EP0870378A1 (en) 1998-10-14

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